scholarly journals Characteristics of Cetane index of traditional diesel oil in Wonocolo district, Bojonegoro

2020 ◽  
Author(s):  
Heni Fidyayuningrum ◽  
Rois Fatoni ◽  
Kun Harismah
Keyword(s):  
Diesel Oil ◽  
Cetane Index

scholarly journals A ANALISA KUALITAS AUTOMOTIVE DIESEL OIL (ADO) SESUAI DENGAN BAKU MUTU YANG BEREDAR DI MASYARAKAT

2019 ◽  
Vol 10 (01) ◽  
pp. 28-32
Author(s):  
Indah Agus Setiorini
Keyword(s):  
High Speed ◽  
Diesel Oil ◽  
Cetane Index ◽  
High Speed Diesel

Automotif Diesel Oil (ADO) adalah bahan bakar jenis distilat berwarna kuning kecoklatan yang jernih, sedikit lebih kental dari pada minyak tanah atau kerosine, dengan trayek didih berkisar antara 180 oC sampai 370 oC, digunakan sebagai bahan bakar untuk mesin diesel berkecepatan tinggi (lebih besar dari 1000 rpm), seperti : kendaraan umum, truk, trailer, alat-alat penggusur tanah, traktor, kereta api, dll. Automotif Diesel Oil (ADO) disebut juga gasoil atau HSD (High Speed Diesel Oil). Tujuan dari evaluasi kualitas Automotif Diesel Oil (ADO) ini yaitu untuk tahu apakah Automotif Diesel Oil (ADO) yang beredar di masyarakat memenuhi syarat pemasaran terutama peruntukan automotif atau mesin diesel. Beberapa parameter uji yang dilakukan, yaitu berupa : Berat Jenis (spesific gravity), Sifat Pembakaran (ignation quality), dan Sifat Penguapan (volatility). Hasil pegujian bahan bakar ADO dari berbagai SPBU memberikan gambaran bahwa sifat atau karakteristik minyak ADO yang diteliti umumnya masih memenuhi spesifikasi baik digunakan sebagai bahan bakar mesin diesel maupun persyaratan transaksi dan transportasi. Dari hasil analisa Spesific Gravity berada di range 0,820 - 0,870,  yaitu 0,850  sampai dengan 0,852. Untuk Analisa Sifat Pembakaran dengan Metode Calculated Cetane Index (CCI) ASTM D-976 dimana rata-rata cetane index berkisar 47 -  48 yaitu diatas spesifikasi (min 45). Analisa Sifat Penguapan dengan metode distilasi ASTM D-86 menunjukkan bahwa temperatur FBP memenuhi spesifikasi yaitu < 370oC.

scholarly journals Emissions of an agricultural engine using blends of diesel and hydrous ethanol

2019 ◽  
Vol 40 (1) ◽  
pp. 7
Author(s):  
Marcelo Silveira de Farias ◽  
José Fernando Schlosser ◽  
Javier Solis Estrada ◽  
Gismael Francisco Perin ◽  
Alfran Tellechea Martini
Keyword(s):  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Standard Procedure ◽  
Diesel Oil ◽  
K Value ◽  
Operating Modes ◽  
Diesel Cycle ◽  
Reduce Emissions ◽  
Hydrous Ethanol

The growing global demand of energy, the decrease of petroleum reserves and the current of environmental contamination problems, make it imperative to study renewable energy sources for use in internal combustion engines, in order to decrease the dependence on fossil fuels and reduce emissions of pollutant gases. This study aimed to evaluate the emissions of a diesel-cycle engine of an agricultural tractor that uses diesel S500 (B5) mixed with 3, 6, 9, 12 and 15% of hydrous ethanol. It determined emissions of CO2 (ppm), NOx (ppm), and opacity (k value) of gases. A standard procedure was applied considering eight operating modes (M1, M2, M3, M4, M5, M6, M7, and M8) by breaking with an electric dynamometer in a laboratory. The experimental design was completely randomized, with 60 replicates and a 6 x 8 factorial design. Greater opacity and gas emissions were observed when the engine operated with 3% ethanol, while lower emissions occurred with 12 and 15%. With these fuels, the reduction of opacity, CO2, and NOx, in relation to diesel oil, was 24.49 and 26.53%, 4.96 and 5.15%, and 6.59 and 9.70%, respectively. In conclusion, the addition of 12 and 15% ethanol in diesel oil significantly reduces engine emissions.

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